Home / 709,747.33-979,468.10-387,459.85

Finding the Fourth Proportional to 709,747.33, 979,468.10 and 387,459.85

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Solution

The fourth proportional to 709,747.33, 979,468.10 and 387,459.85 is: 534,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,747.33 : 979,468.10 = 387,459.85 : x
  2. Step 2: Convert to fraction form
    709,747.33/979,468.10 = 387,459.85/x
  3. Step 3: Cross multiply
    709,747.33x = 979,468.10 × 387,459.85
  4. Step 4: Simplify right side
    709,747.33x = 379,504,563,105.79
  5. Step 5: Solve for x
    x = 379,504,563,105.79/709,747.33
  6. Step 6: Final answer
    x = 534,703.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.